18f9351223
The compiler was generating symbols in the final code object for local branch target labels. This bloats the code object, slows down the loader, and is only used to simplify disassembly. Use '--symbolize-operands' with llvm-objdump to improve readability of the branch target operands in disassembly. Fixes: SWDEV-312223 Reviewed By: scott.linder Differential Revision: https://reviews.llvm.org/D114273
50 lines
1.7 KiB
LLVM
50 lines
1.7 KiB
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
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; Make sure that m0 is not reinitialized in the loop.
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; GCN-LABEL: {{^}}copy_local_to_global_loop_m0_init:
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; GCN: s_cbranch_scc1 .LBB0_3
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; Initialize in preheader
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; GCN: s_mov_b32 m0, -1
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; GCN: .LBB0_2:
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; GCN-NOT: m0
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; GCN: ds_read_b32
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; GCN-NOT: m0
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; GCN: buffer_store_dword
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; GCN: s_cbranch_scc0 .LBB0_2
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; GCN: .LBB0_3:
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; GCN-NEXT: s_endpgm
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define amdgpu_kernel void @copy_local_to_global_loop_m0_init(i32 addrspace(1)* noalias nocapture %out, i32 addrspace(3)* noalias nocapture readonly %in, i32 %n) #0 {
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bb:
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%tmp = icmp sgt i32 %n, 0
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br i1 %tmp, label %.lr.ph.preheader, label %._crit_edge
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.lr.ph.preheader: ; preds = %bb
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br label %.lr.ph
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._crit_edge.loopexit: ; preds = %.lr.ph
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br label %._crit_edge
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._crit_edge: ; preds = %._crit_edge.loopexit, %bb
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ret void
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.lr.ph: ; preds = %.lr.ph, %.lr.ph.preheader
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%indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.lr.ph.preheader ]
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%i.01 = phi i32 [ %tmp4, %.lr.ph ], [ 0, %.lr.ph.preheader ]
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%tmp1 = getelementptr inbounds i32, i32 addrspace(3)* %in, i32 %i.01
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%tmp2 = load i32, i32 addrspace(3)* %tmp1, align 4
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%tmp3 = getelementptr inbounds i32, i32 addrspace(1)* %out, i64 %indvars.iv
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store i32 %tmp2, i32 addrspace(1)* %tmp3, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%tmp4 = add nuw nsw i32 %i.01, 1
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32
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%exitcond = icmp eq i32 %lftr.wideiv, %n
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br i1 %exitcond, label %._crit_edge.loopexit, label %.lr.ph
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}
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attributes #0 = { nounwind }
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